diff --git a/go.mod b/go.mod
index c69590b..6b0c74a 100644
--- a/go.mod
+++ b/go.mod
@@ -6,8 +6,8 @@ require github.com/go-chi/render v1.0.3
 
 require (
 	github.com/ajg/form v1.5.1 // indirect
-	github.com/go-chi/chi/v5 v5.0.12 // indirect
+	github.com/go-chi/chi/v5 v5.0.12
 	github.com/joho/godotenv v1.5.1
-	github.com/sirupsen/logrus v1.9.3 // indirect
+	github.com/sirupsen/logrus v1.9.3
 	golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8 // indirect
 )
diff --git a/internal/session/service.go b/internal/session/service.go
index bfc3545..40e6a42 100644
--- a/internal/session/service.go
+++ b/internal/session/service.go
@@ -21,6 +21,7 @@ type Service struct {
 
 func New() *Service {
 	logger := logrus.New()
+	mutex = &sync.Mutex{}
 	return &Service{
 		logger: logger.WithField("desc", "session.Service"),
 	}